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Finding the Fourth Proportional to 319,803.42, 479,180.24 and 109,326.54

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Solution

The fourth proportional to 319,803.42, 479,180.24 and 109,326.54 is: 163,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,803.42 : 479,180.24 = 109,326.54 : x
  2. Step 2: Convert to fraction form
    319,803.42/479,180.24 = 109,326.54/x
  3. Step 3: Cross multiply
    319,803.42x = 479,180.24 × 109,326.54
  4. Step 4: Simplify right side
    319,803.42x = 52,387,117,675.57
  5. Step 5: Solve for x
    x = 52,387,117,675.57/319,803.42
  6. Step 6: Final answer
    x = 163,810.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.